Building An Addition: A Homeowner's Guide

Dredging May Be Necessary When Building Around Water

by Toni Richards

When you are working on a construction site that is located on the water, you have a lot of things that you are going to have to worry about. If you don't take care of everything the right way, then you can end up have a problem with the building after it has been built, which can turn around and bite you in the foundation. One of the things that you are going to have to do is to worry about dredging. 


Construction site dredging happens when debris and soil are scraped up from the bottom of the waterway and then either deposited on land or elsewhere in the waterway, depending on what's happening and what the needs of the builders are. For example, soil that has been dredged up from the waterway where you are trying to work can then be added into your construction site. That is part of how land is built in various places near harbors and significant waterways. If you are working on a bridge, you might have dredges come in to make sure that there is going to be clear water around where the bridge is going to be. There are a lot of reasons why you may need to have your site dredged up. 

Solid Bottom

One reason is that you may need to have a solid bottom to work on. For example, if part of your construction job includes you having to have a pier or dock, you are going to want to get to as solid a bottom as possible. You can drive piles down through all the stuff that's on the bottom, but you might not be able to get as solid a bottom as you would like to have, but if you have the area dredged, then you can end up with a nice solid bottom for you to start to work on. 

Navigable Channels

When you are building bridges or piers or docks, you are going to want to make sure that water traffic can get through while you are working. One way to do that is to have a dredger go through before you start and have them dredge out a channel to make sure that traffic isn't going to be significantly held up while you are working. 

If you are doing construction on or near the water, you may have to think about dredging to make sure you can get the job done.